Brick-kiln



E.' STAIR.

BRICK KILN.

(No Model.)

No. 375,838. Patented Jan. 3, 1888.

@WMM/woo c n UNITED STATES PATENT OFFICE.

EDMUND STAIR, OF HARRISONVILLE, MISSOURI.

BRICK-KILN.

SPECIFICATION forming part of Letters Patent No. 375,838, dated January'3, 1888.

Application filed April 16,18%?. Serial No. 235,085. (No model.)

To LZZ whom, t may concern..-

Be it known that I, EDMUND STATE, a citizen of the United States,residing at Harrisonville, in the county of Cass and State of Missouri,have invented a new and useful Improvement in Furnaces for Brick-Kilns,of

Vwhich the following is a specification.

My invention relates to an improvement in furnaces for brick-kilns; andit consists in the peculiar construction and combination of devices,that will be more fully set forth hereinafter, and particularly pointedout in the claims.

In the drawings, Figure lis a perspective View of a brick-kiln andfurnace embodying my improvements. tudinal view ofthe same. Fig. 3isavert-ical transverse sectional view of the saine-,taken on the line m:v of Fig. 2.

A represents a furnace, which is built of brick, and is provided with alongitudinal vertical central compartment, B, having an arched roof, C.At a suitable distance from the ground transverse bars D are placedacross the ends of the compartment B, and on these bars are supportedthe ends of longitudinal grate-bars E, the latter being trussed on theirlower sides, as shown in Fig. v2, and provided with verticallongitudinal openings F,as shown in Fig. 3. The front end of thecompartment Bis opened and the rear end thereof is closed. The spacebelow the gratebars forms the ashpit G, and the space above thegrate-bars and below the arch C forms the combustion-chamber H.

In the side walls ofthe combustion-chamber, and on opposite sides of thelatter, are formed fuel-chambers I, which are open on their inner sidesand communicate with the combustionchamber, the upper sides of the saidfuelchambers being arched, as shown in Fig. 2. From the saidfuel-chambers I extend vertical longitudinal openings K, whichcommunicate with the outer sides of the fuel-chambers and pass throughthe roof of the furnace. The roof L is provided on its sides and frontwith outwardly-inclined or fiared flanges M, and thereby the roof of thefurnace forms a receptacle on which coals may be piled. N rep Fig. 2 isa vertical longiresents longitudinal slides, which cover the upper endsof the openings K and fit on the top of the roof. The front ends ofthese slides extend slightly beyond the front side of the furnace, andthe said slides are guided in hori` zontal openings, with which thefront iange, M, is provided.

O represents horizontal longitudinal inlet air-dues, which are formed inthe side walls of the furnace on the outer sides of the fuelchambers I,and transeverse slits or openings P are made in the said outer sides ofthe fuelchambers,and communicate with the air-fines O, whereby thefuel-chambers may be supplied with a constant accession of fresh air.

The operation of myinvention is as follows: The coal is heaped on theroof, as before described,and the fire is started inthe combustion--chamber. By opening the slidesNthe upper endsoftheopeningsKareuncovered,andapor tion of the coal on the roof of thefurnace falls downwardly through-the openings K into the fuel-chambers,and from thence inwardly onto the grate in the combustion-chamber. Bythis means the fuel-chambers may be always kept filled with coal, andthe fire will be constantly supplied with fuel.

Openings R are madethrough the frontwalls of the fuel-chambers, and areadapted for the insertion of pokers to agitate the fuel in thefuel-chambers and prevent it from becoming clogged therein.

From the foregoing description it will be' claiml. The brick-kilnfurnace having the longitudinal combustion-chamber I-I open at one end,the ash-pit G under the same, the charnbers I, for the storage of fuel,arranged alongside the combustion-chamber and having their upper sidesarched and opening into the combustion chamber nearly the entire lengththereof, the air-lines O, arranged on the outer sides of the combustionchamber, and the openings P, communicating with the air-iiues and withthe fuel-chambers, substantially as described.

2. The brick-kiln furnace having the longitudinal combustion-chamber H,the fuel-cha1n bers y I, arranged alongside the combustionchalnber andhaving their upper sides arched and opening into the samethroughoutnearly the entire length thereof, the air-fines O,communicating with the fuel-chambers, the verticalV longitudinalopenings K, extending from the fuel-chambers to the roof of the furnace,

and the slides N, arranged on the upper ends of the openings K,substantially as described. 3. The furnace ior brick-kilns having thecentral combustionchamber, the Hue chambers on opposite sides thereofand communieating therewith, the air-fines O and P, eX- 2o tending fromthe outer air to the outer sides of the fueieharnbers, for the purposeset forth, the vertical openings K, extending from the upper sides ot'the fuelchambers to the roof of the furnace, the latter having the sideflanges, M, and the slides N, adapted to cover the upper ends of theopenings K, for the'purpose set forth, substantially as described.

In testimony that I claim the foregoing as my ownI have hereunto affixedmy signature in 3o presence of two witnesses.

EDMUN D STAIR.

Witnesses:

BEN. C. SMITH, GEO. D. LITTLE.

